Vanden Bossche S, Vanzieleghem B, Declercq H, Verstraete K V
Department of Radiology, AZ Sint-Blasius, Dendermonde, Belgium.
Department of Radiology, Ghent University Hospital, Ghent, Belgium.
J Belg Soc Radiol. 2015 Sep 15;99(1):31-33. doi: 10.5334/jbr-btr.862.
This case report presents the MRI findings of aplasia of the anterior cruciate ligament with associated hypoplasia of the posterior cruciate ligament (Manner type 2). Radiographically the presence of a shallow femoral notch and hypoplastic tibial spines (the so-called "dromedar" sign) can aid in the diagnosis. Operative treatment is often not indicated since the congenital absence of the ACL implies longstanding altered biomechanics to which the knee has well adapted in the majority of cases.
本病例报告展示了前交叉韧带发育不全合并后交叉韧带发育不良（马纳类型2）的MRI表现。影像学上，股骨髁间窝变浅和胫骨棘发育不良（所谓的“单峰驼”征）有助于诊断。由于ACL先天性缺失意味着长期的生物力学改变，而在大多数情况下膝关节已很好地适应了这种改变，所以通常不建议进行手术治疗。
